The question was raised in a somewhat different context, “Did God need to create a physical universe at all?” Jason flippantly and callously responded by quipping, “Who cares? He did.” It still surprises me at the simplistic non-answers we get from some Christians. Here’s my response…

Just think for one moment, okay? Don't just spit out what you were taught to believe, which is what you do. What did God lack before creation that made him want to create in the first place? Take a moment to truly reflect on that question. I'll repeat it again so you do. What did God lack before creation that made him want to create in the first place?

I know your answer. The answer is that God lacked nothing, as in NOTHING. So what reason would cause God to want to create anything? There was no lack, no want, and no need. That which causes a reasonable person to act is a lack, either his own, or someone else's lack. And even given that God wanted to create something, anything, why did he create this particular world? These are significant questions if you'll take a moment to reflect on them, rather than spitting out proof texts and the blind faith results of your proof-texting.

Your God is supposedly a God of reason. Everything he does is reasonable. Well then, what's his reason for creating something, anything?

There can be no good reason for doing so, not even with an omniscient God, for an omniscient God must still act according to reason. Unless by his logic he can do what is illogical, or by his reason he can do that which is unreasonable, there is no reason for God to have done so.

Even if we grant that God wanted to create something, anything, why would he create this particular world? It is a huge mess. And it is likewise a non-answer to say it’s Adam and Eve’s fault.

If God foreknew this world would become a mess when he had no good reason to create anything in the first place, then why create this particular one?

What kind of world is this one? It's a world where most people wind up in hell. Why create a world like this when most people in it will be punished for an eternity? Consider what Ivan Karamazov, Fyodor Dostoyevsky’s character, said: “Tell me yourself—I challenge you: let’s assume that you were called upon to build the edifice of destiny so that men would finally be happy and would find peace and tranquility. If you knew that, in order to attain this, you would have to torture just one single creature, let’s say a little girl who beat her chest so desperately in the outhouse, and that on her unavenged tears you could build that edifice, would you agree to do it? Tell me and don’t lie!”

If there was no need to create anything, none, and if you foreknew people would suffer in this world and eventually do so for an eternity, would you create this particular world for your own glory, which is what Biblical theism asserts? Would you do so for YOUR OWN GLORY, especially when you already had all glory and there was no need to do so in the first place? Answer the question and do not lie!

Only a sadistic egotistic monster would even consider doing so.

-----------------------Other types of similar arguments can be found in my book.